The Molecular and Chromosomal Basis of Inheritance Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Which is the strand that replicates just as quickly as the replication fork opens up?

Question 2 2. Which single nucleotide makes up the 5' cap?

Question 3 3.

The following are consequences of meiotic recombination:

I. Increased genetic diversity

II. Exchange of parts of homologous chromosomes

III. Stabilization of chromosomes at the metaphase plate

Question 4 4.

Using the given information, determine the correct order of the following events during the replication of the lagging strand.

a. The DNA double helix unwinds.

b. The Okazaki fragments are joined.

c. The RNA primase builds an RNA primer on the parent strand.

d. Nucleotides are added and matched to the parent strand.

Question 5 5. Which part of a chromosome is the most important for mitosis?

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Question 6 6. If a human has forty-six chromosomes, what is the maximum number of chromatids that could be found in a cell in a normal human body?

Question 7 7. Because hydrogen bonds are weak bonds, they create a perfect site for _____.

Question 8 8. The sugar end of the DNA strand is referred to as the _____ end and the phosphate end is referred to as the _____ end.

Question 9 9. What is the anticodon for the codon AAG?

Question 10 10. What is the central dogma of molecular biology?

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Question 11 11. Which enzyme is responsible for laying down the daughter nucleotides during DNA replication?

Question 12 12. In which step do the tRNA and mRNA first join up in the ribosome?

Question 13 13. Which of these statements is true?

Question 14 14. How many subunits make up the ribosome complex?

Question 15 15. If the cell of a diploid organism (2n = 6) undergoes meiosis, how many different chromosome homologs are present in each daughter cell at the end of meiosis I?

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Question 16 16. The failure of linked homologs or chromatids to separate during anaphase of mitosis or meiosis is known as _____.

Question 17 17. In the lac operon in E. coli, what would happen if lactose couldn't bind to the repressor?

Question 18 18. A scientist is studying an organism with a mutation which reduces the efficiency of tetrad formation. This defect would most likely affect the ability to:

Question 19 19. Which of these is NOT a function for RNA in cells?

Question 20 20. In which method of DNA Replication would new DNA consist of alternating parent and daughter DNA?

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Question 21 21. Because the same codons specify the same amino acids in nearly all organisms, we say that the genetic code is _____.

Question 22 22. ____ is a special type of cell division that makes gamete cells for sexual reproduction.

Question 23 23. Which of these statements is NOT true about DNA replication?

Question 24 24. Sexual reproduction involves _, while asexual reproduction involves _.

Question 25 25. Which of the following forms the backbone of a DNA molecule?

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Question 26 26.

Which of these elements are important for starting and ending the process of transcription?

I. start codon

II. terminator

III. promoter

IV. stop codon

Question 27 27. What would happen if gametes were made by mitosis instead of by meiosis?

Question 28 28. Organize these steps in the order in which they would occur during cell division.

Question 29 29.

Which analogy is incorrect?

I. amino acids are to proteins as nucleic acids are to nucleotides

II. an anticodon is to a codon as a key is to a lock

III. a phosphodiester bond is to DNA as a peptide bond is to RNA

Question 30 30. Which of the following is NOT one of the nitrogenous bases found in DNA?

The Molecular and Chromosomal Basis of Inheritance Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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